卷板机之所以能够起到卷板的效果，首要仍是要来它的上下辊，并且上辊是在两个下辊中间的对称方位进行笔直升降运动的，当然这也要全赖液压缸内的液压油对活塞的效果。而两下辊是靠主减速机的末级齿轮所带动的，首要是作旋转运动，从而为卷制板材供给扭矩。
卷板机上辊在两下辊中心对称方位经过液压缸内的液压油效果于活塞作笔直升降运动，经过主减速机的末级齿轮带动两下辊齿轮啮协作旋转运动，为卷制板材供给扭矩。
It’s the standard flat plastic metal plate after three working roller machine (two root rollers, a roller) between with rotary motion of the upper roller and the lower roller under pressure, the metal plate after several successive twists and turns, the plastic deformation of permanent, roll into demand the cylinder, cone or a part of them. The defects of the hydraulic three roller bending machine are that the end of the plate needs to be bent with other equipment. The plate bending machine is suitable for the large plate bending machine with a thickness of more than 50mm, and the lower part of the two lower roller adds a row of fixed idlers to shorten the span of the two lower rolls, so as to improve the accuracy of the rolled parts and the overall performance of the machine.
它的标准平坦的塑性金属板经过卷板机的三根作业辊(二根下辊、一根上辊)之间，凭借上辊的下压及下辊的旋转运动，使金属板经过多道次接连曲折，发生永久性的塑性变形，卷制成所需求的园筒、锥筒或它们的一部分。该液压式三辊卷板机缺陷是板材端部需凭借其它设备进行预弯。卷板机适用于卷板厚度在50mm以上的大型卷板机，两下辊下部增加了一排固定托辊，缩短两下辊跨距，从而进步卷制工件精度及机器全体性能。
Rolling machine roll in two and symmetrical range after the hydraulic oil in the hydraulic cylinder piston effect for straight lifting movement, after the last stage gear of the main reducer driven two roller gear meshing cooperative rotary motion for coiled sheet supply torque.
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